The most basic and most common fault in the 307 on a daily basis is losing a strong back position, especially in the first 6-8 inches off the floor. This could be because of weakness in the gluteus, hamstrings, or spinal erectors, or just poor mechanics, but this issue will effect everything from the Deadlift, clean, snatch, and even the squat, so it is a very important thing to fix. One way you can fix this is by using a technique called a top down Deadlift. In this Deadlift variation, you start in a rack at full extension, then lower the weight down for tap and go reps without ever resting the bar on the ground. The main focus of this Deadlift is to focus on lowering the weight while maintaining the correct posture, so thing about staying tight in your midline, push your hips back the bending your knees slightly to Finnish.